Siemens SINAMICS S120 - Page 967

Basic information about the drive system
13.6 Inputs/outputs
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
967
Function diagrams (see SINAMICS S120/S150 List Manual)
TB30
•
9102
Terminal Board 30 (TB30)
-
isolated digital inputs (DI 0 ... DI 3)
TM31
•
9556
Terminal Module 31 (TM31)
-
Digital relay outputs, electrically isolated (DO 0 ... DO 1)
Control Unit 310-2
•
2038
CU310
-2 input/output terminals -
digital output (DO 16)
Bidirectional digital inputs/outputs
Signal processing using the bidirectional inputs/outputs is shown in the function diagrams
listed below.
Properties
● Can be parameterized as digital input or output.
● When set as digital input:
– Six "high-speed inputs" on Control Unit
If these inputs are used, for example, for the "flying measurement" function, they act
as "high-speed inputs" with virtually no time delay when the actual value is saved.
– The properties of the "pure" digital outputs apply.
● When set as digital output:
– The properties of the "pure" digital outputs apply.
● Sharing of bidirectional input/output resources by the CU and higher-level controller (see
Section "Use of bidirectional inputs/outputs on the CU (Page 969)")